Abstract: A metal gasket is described which has a structure with no beads so that the need for dies used for molding is eliminated, thereby facilitating the processing of the gasket and achieving good cost performance, and which is excellent in sealing ability. The metal gasket comprises (i) an elastic metal plate having a base and folded-back portions each of which is formed so as to create a clearance together with the base and disposed so as to extend around a bore hole and (ii) a metal plate which is thicker than the elastic metal plate and has lower level portions each of which is located at a position closed to each bore hole, and the elastic metal plate and the metal plate are laminated such that each folded-back portion of the elastic metal plate faces the lower level portion of the metal plate.

Abstract: With the objective of providing a metallic gasket which can realize both sealing performance and cost reduction which can be achieved by the decreased number of constituting plates or the decreased number of materials, the metallic gasket is composed of: a first bead plate which is made of elastic metal and has hot plug beads which are respectively formed opposite hot plugs; and a second bead plate which is made of elastic metal and has folded parts each of which is formed about the periphery of a bore hole and annular bore beads each of which is formed about the periphery of an area including the bore hole and a portion which is opposite to the hot plug.

Abstract: A slip joint for an engine exhaust system having a male and female manifold section which utilizes a sleeve assembly that is disposed about one of the manifold sections. The sleeve assembly has a positioning portion and locating portion. The positioning portion is in sealing engagement with one of the manifold sections and the locating portion is in resiliently sealing engagement with the other manifold section. The principle use is for exhaust manifold connections, however any joint that has thermal expansion or encounters vibrational loads will benefit from this invention. For example, exhaust gas recirculation systems may have passages connected with this invention.

Abstract: A metal gasket is used for an internal combustion engine, preferably as a manifold gasket. The gasket is formed of a plurality of metal gasket sections, and at least one metal connecting section situated between two gasket sections adjacent to each other to connect the same. Each gasket section has a sealing hole to be sealed and a sealing device situated around the sealing hole. At least one through hole is formed in the connecting section. The through hole allows the connecting section to easily deform to absorb deformation of the gasket due to expansion and contraction of the engine. The gasket with the deformable connecting section can be easily and accurately formed.

Abstract: A T-joint gasket assembly for sealing a first surface, a second surface adjacent to the first surface and a third surface intersecting the first and second surfaces, said first, second and third surfaces generally forming a T-joint, said T-joint being sealed absent an external sealant such as an RTV sealant agent, said gasket assembly comprising: a first gasket member which has at the ends thereof a plurality of sealing beads and at least one sealing finger, a second gasket member positioned generally coextensive with said third surface, and being oriented so as to provide a T-joint like connection with said first gasket member, with both the first gasket member and the second gasket member including a supportable elastomeric sealing material to carry out the gasket sealing, said second gasket member possessing a plurality of elastomeric sealing pads thereon, said sealing beads and said sealing finger of the first gasket member being provided to make sealing contact with said sealing pads on said second gaske

Abstract: A metal gasket for an internal combustion engine is basically formed of a main plate. The main plate includes a first hole for constituting one of bolt holes, a second hole corresponding to a fluid hole and situated adjacent to the first hole, and a full bead having a first half bead and a second half bead situated outside the first half bead. The first half bead completely surrounds only the second hole, and the second half bead surrounds the first and second holes. Thus, a portion away from the first hole is surrounded by the first and second half beads to securely seal around the second hole. Also, the tightening pressure by the bolt can be supported with good balance.

Abstract: A cylinder head gasket 1 includes a shim ring 5 which surrounds a combustion chamber opening 2A in a gasket body 2. The shim ring is circumferentially spot welded along weld lines 5a, 5b. The weld spacing of the spot welding is varied to provide zones H.sub.1, H.sub.2 and H.sub.3 of high welding density and zone of a low welding density. The weld spacing in the zone of high welding density is such that a distortion in the shim ring is produced under the influence of heat generated during the welding operation if the weld spacing is used around the full circumference of the shim ring for spot welding. However, by interposing a zone of a low welding density, a distortion in the shim ring can be prevented while increasing the welding strength.

Abstract: A gasket of non-conductive material formed of layers of a ceramic between which is embedded a wire circuit for connecting spark electrodes, high voltage connectors and ground connectors of a spark ignition system. The wire circuit includes small diameter wires surrounding gasket openings for bounding and sealing the edges of combustion chambers defined by cylinders in an internal combustion engine. The small diameter wires are insulated by the high dielectric layers of the gasket as well as by high dielectric wrappings and a sheath of high dielectric material bonded to and within the layers forming to gasket.

Abstract: A first fluid passage for a crankshaft is plugged at an end portion to prevent fluid leakage from the passage. A plug having first and second cylindrical end portions of different diameters is slidably disposed in first and second cylindrical bore portions, respectively, of the first fluid passing passage and retained in the bore portions by a stop ring. A resilient member disposed in the second cylindrical bore portion engages a shoulder on the plug and a transition step surface in the second cylindrical bore portion and forcibly urges the plug against the stop ring.

Abstract: A cylinder head gasket 1 comprises a pair of gasket baseplates 3 having a combustion chamber opening 3A formed therein, and a spacer 4 disposed around a cylinder bore 2 to surround it in an endless manner and held sandwiched between the pair of gasket baseplates 3. A full bead 3a and a half bead 3b are formed on each gasket baseplate in a region overlapped by the spacer 4, and the spacer as well as the full bead and the half bead are continuously held sandwiched between a cylinder head 5 and a cylinder block 6 along the circumference of the cylinder bore. The spacer allows the full bead and the half bead to be brought into abutment against the mating member under a high surface pressure and over a relatively extensive area of contact, whereby a good sealing performance is obtained in the presence of a gross porosity in the casting or flaw on the mating adjoined surface.

Abstract: There is disclosed a tubular packing which can be easily produced, and has satisfactory durability while maintaining excellent properties of exfoliated graphite such as cushioning properties and heat-resistance. There are prepared a sheet of exfoliated graphite sheet and two wire nets equal in size and shape to the sheet. The one wire net is superposed on an obverse side of the sheet in coinciding relation thereto whereas the other wire net is held in contact with a reverse side of the sheet in offset relation thereto, and this stack is curved into a tubular shape, and this tubular stack is compressed in a direction of a thickness of the sheet, thereby forming a tubular packing. Therefore, in the resultant tubular packing, the wire nets are embedded in the sheet. The wire net interconnects the opposite end edges of the sheet in a bridging manner, so that the tubular packing is continuous over the entire circumference thereof.

Abstract: An exhaust manifold seal arrangement to eliminate oil slobber comprises a counter bore in cylinder head exhaust ducts, a spiral wound gasket with chevron shaped ends and a barrel shaped portion disposed between the chevron shaped ends being disposed in the counter bore to form a leak proof seal between the cylinder head and the exhaust manifold and a thermal liner between the exhaust gases and the counter bore, the exhaust manifold being made in three parts with a spiral wound gasket being disposed between the parts to form a leak proof seal between the parts.

Abstract: A gasket assembly for use in an automotive engine for sealing a T-joint or multi-joint assembly without the use of a secondary sealing media such as RTV. The gasket assembly including a first gasket having a core member, having a plurality of orifices. A seal member attached to the side of the core member. At least one sealing bead extending from an end of the seal member, at least one of the sealing beads engaging with a sealing pad attached to a second gasket to form a T-joint between an engine block, an oil pan and front cover.

Abstract: A metal sealing gasket includes first and second opposite, superposed metal cover plates; and an aperture provided in each cover plate. The apertures are in alignment with one another to define a thoroughgoing opening in the metal sealing gasket. Further, first and second projections are provided which form part of the first and second cover plates, respectively. The first and second projections extend into the opening and have overlapping portions which are in a contacting relationship with one another. The first and second projections are situated in their entirety within the opening and thus do not project outwardly beyond the outer surfaces of the cover plates.

Abstract: A seal of an elastomeric material used to mount an intake manifold in a gas-tight manner on the cylinder head of an internal combustion engine is disclosed. The seal is formed to blend together in one piece and is located in position on the side of the intake-manifold flange facing the cylinder head. The seal has sealing surfaces, which sealingly surround the periphery of the intake pipes of the intake manifold during normal operational use. The sealing surfaces are interconnected by web segments, and at least one of the web segments is designed in one area of its extent to act as a linear tolerance compensation segment, to be flexurally soft and/or capable of folding together.

Abstract: A seal arrangement provides a reliable and durable seal even around a protruding edge or corner of a rim of a first component that is connected to a second component, for example the rim of an oil pan that is connected to the rim of a crankcase and the rim of the housing of an equipment mount of an internal combustion engine. An angular edge is formed at the intersection of a first sealing surface between the oil pan and the crankcase and a second sealing surface between the oil pan and the equipment mount housing. First and second grooves extend in skew directions and offset from one another along the first and second sealing surfaces, and an offset recess extends along and in the direction of the intersection edge to interconnect the first and second grooves. A rubber-elastic seal member includes major portions received in the grooves and an offset portion received in the offset recess. The seal member is press-sealed against facing complementary surfaces.

Abstract: A metal laminate gasket of the invention is formed of first and second metal plates and an annular plate. The first metal plate has a base portion, a curved portion extending from the base portion to define a first opening corresponding to a hole of the engine to be sealed, and a flange extending from the curved portion and situated over the base portion. The annular plate is situated between the flange and the base portion and has the width at least partly shorter than that of the flange. The second metal plate is situated over the first metal plate at a side where the flange is located. The second metal plate has a second opening at least partly smaller than an outer diameter of the flange, and an edge portion around the second opening. The edge portion of the second plate is at least partly retained between the flange and the base portion. Thus, the first and second metal plates are assembled together with the annular plate.

Abstract: A metallic cylinder head gasket with a pair of deformation limiters for protecting each sealing bead which circumscribes a gasket opening aligned with an engine cylinder. The gasket has at least a first cover plate, which includes the resilient beads, a shim and a ring member. The edge of the combination chamber aligned opening in the shim is displaced radially outwardly from the associated bead, and the bead is thus not aligned with the shim, and a ring member overlaps the shim in an annular region adjacent the edge of the opening in the shim to define an outer deformation limiter. The ring member extends radially inward to the edge of the gasket opening and has a region of increased thickness which defines the inner deformation limiter.

Abstract: This metal gasket has firmly secured to the intermediate plate through the mounting metal plates the seal members for sealing stepped portions that occur between the cylinder block and the chain case. The metal gasket comprises elastic metal plates formed with notched portions opening to the chain passage opening and an intermediate plate formed with sealing slots, mounting holes and positioning holes. The seal members are installed in the sealing slots of the intermediate plate to seal the stepped portions between the main seal portion and the sub-seal portions. The mounting metal plates attached to the seal members are provided with engagement portions. The engagement portions are folded to hold the edges of the mounting holes to secure the mounting metal plates to the intermediate plate and position the seal members in the sealing slots.